A person measured a line as 5.05 cm instead of its true length of 5.00 cm. What is the percentage error? MCQ with Answer and Explanation

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A person measured a line as 5.05 cm instead of its true length of 5.00 cm. What is the percentage error?

A. 0.5%

B. 2%

C. 1%

D. 1.5%

Answer: Option C

Solution (By JKSSB Mock Tests)

Error = 5.05 - 5.00 = 0.05. % Error = (0.05 / 5.00) * 100 = 1%.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

Marked 20% above CP, discount 10%. Profit %:

A. 12%

B. 8%

C. 10%

D. 6%

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Correct Answer: Option B

Explanation:
CP=100, MP=120, SP=108, profit 8%.

This question belongs to: Maths Percentage

Question #2

If the radius of a circle is increased by 100%, the area increases by:

A. 500%

B. 200%

C. 300%

D. 400%

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Correct Answer: Option C

Explanation:
Area proportional to radius². New radius 2r, area 4 times, increase = 300% (i.e., 4-1 = 3 times = 300%).

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Question #3

In 100 L mixture, milk:water = 3:2. Water added to make ratio 1:1:

A. 20 L

B. 25 L

C. 30 L

D. 40 L

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Correct Answer: Option A

Explanation:
Milk=60 L, water=40 L. For milk:water = 1:1, water=60 L, add 20 L.

This question belongs to: Maths Percentage

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